
/* 清楚浮动 */

.clearfix {
    &:after {
      visibility: hidden;
      display: block;
      font-size: 0;
      content: " ";
      clear: both;
      height: 0;
    }
  }
  
  .fl {
    float: left;
  }
  .fr {
    float: right;
  }
  .clearfix::after {
    content: '';
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
  }
  *{ box-sizing: border-box; }
  
  .flex{
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: start;
        -ms-flex-pack: start;
            justify-content: flex-start;
    -webkit-box-align: start;
        -ms-flex-align: start;
            align-items: flex-start;
  }
  
  .flex-center {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
  }
  
  .flex-center-column {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
  }
  
  .flex-center-start {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: start;
    -ms-flex-pack: start;
    justify-content: flex-start;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
  }
  
  .flex-center-end {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: end;
        -ms-flex-pack: end;
            justify-content: flex-end;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
  }
  
  .flex-start {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: start;
    -ms-flex-pack: start;
    justify-content: flex-start;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: flex-start;
  }
  
  .flex-between {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
  }
  
  .flex-between-start{
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    -webkit-box-align: start;
        -ms-flex-align: start;
            align-items: flex-start;
  }
  
  .flex-around{
    display: flex;
    justify-content: space-around;
    align-items: center;
  }
  
  .one-line-ellipsis {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  
  .two-line-ellipsis {
    overflow: hidden;
    // white-space: nowrap;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    /* autoprefixer: ignore next */
    -webkit-box-orient: vertical;
  }
  
  .border-bottom-1px {
    position: relative;
  }
  
  .border-bottom-1px::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    /* background: #ececec; */
    border-bottom: 1px solid #656565;
    width: 100%;
    height: 1px;
    transform: scaleY(0.5);
    transform-origin: 0 0;
  }
  
  .border-left-1px {
    position: relative;
  }
  
  .border-left-1px::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    /* background: #ececec; */
    border-bottom: 1px solid #656565;
    height: 100%;
    width: 1px;
    transform: scaleX(0.5);
    transform-origin: 0 0;
  }
  
  
  .extend-click {
    position: relative;
  }
  
  .extend-click:before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
  }
  
  .extend-click-big {
    position: relative;
  }
  
  .extend-click-big:before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    right: -100px;
    bottom: -1.6rem;
  }
  
  input{  
      background:none;  
      outline:none;  
      border:none;
  }
  
  input::-webkit-input-placeholder {
    /* WebKit browsers 适配谷歌 */
    color: #999999;
  }
  
  input:-moz-placeholder {
    /* Mozilla Firefox 4 to 18 适配火狐 */
    color: #999999;
  }
  
  input::-moz-placeholder {
    /* Mozilla Firefox 19+ 适配火狐 */
    color: #999999;
  }
  
  input:-ms-input-placeholder {
    /* Internet Explorer 10+  适配ie*/
    color: #999999;
  }
  
  
  
  textarea::-webkit-input-placeholder {
    /* WebKit browsers 适配谷歌 */
    color: #999999;
  }
  
  textarea:-moz-placeholder {
    /* Mozilla Firefox 4 to 18 适配火狐 */
    color: #999999;
  }
  
  textarea::-moz-placeholder {
    /* Mozilla Firefox 19+ 适配火狐 */
    color: #999999;
  }
  
  textarea:-ms-input-placeholder {
    /* Internet Explorer 10+  适配ie*/
    color: #999999;
  }